TYBA ONLINE :: Subject: Mouth of Parnaiba River - Parnaiba Delta - Natural boundary between Maranhao and Piaui states / Place: Ilha Grande city - Piaui state (PI)

[+] boundary, [+] river, [+] Canarias Bay, [+] high tide, [+] border, [+] natural boundary, [+] coast, [+] seaside, [+] waterfront, [+] green area, [+] sand, [+] dune, [+] Parnaiba River, [+] tourism, [+] Delta of Parnaiba, [+] sea, [+] beach, [+] littoral, [+] landscape, [+] nature, [+] Piaui, [+] landform, [+] Northeast Region, [+] Delta